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385219 = 2271697
BaseRepresentation
bin1011110000011000011
3201120102101
41132003003
544311334
612131231
73163042
oct1360303
9646371
10385219
1124346a
12166b17
13106453
14a0559
1579214
hex5e0c3

385219 has 4 divisors (see below), whose sum is σ = 387144. Its totient is φ = 383296.

The previous prime is 385199. The next prime is 385223. The reversal of 385219 is 912583.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 912583 = 7130369.

It is a cyclic number.

It is not a de Polignac number, because 385219 - 211 = 383171 is a prime.

It is a super-2 number, since 2×3852192 = 296787355922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (385249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 622 + ... + 1075.

It is an arithmetic number, because the mean of its divisors is an integer number (96786).

2385219 is an apocalyptic number.

385219 is a deficient number, since it is larger than the sum of its proper divisors (1925).

385219 is a wasteful number, since it uses less digits than its factorization.

385219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1924.

The product of its digits is 2160, while the sum is 28.

The square root of 385219 is about 620.6601324396. The cubic root of 385219 is about 72.7616546240.

The spelling of 385219 in words is "three hundred eighty-five thousand, two hundred nineteen".

Divisors: 1 227 1697 385219